Fluid-regulating device



FLUID REGULATING' DEVICE 4Filed July 23, 1923 2' Sheets-'Sheet l fnvengar July 14, 1925. 1,545,990

S. S. WEEKS FLUID REGULATING DEVICE Filed July '25, 1923 2 sheets-sneer2 immun@ I: Il i y I a A I ',By .265m

Patented July 14, 1925. .i

FLUID- REGULATING DEVICE. i

Application'led' July 23, l1923. Serial No. 653,399.

To all whom t may concern: v f

Be it known that I, SHIRLEY S. WEEKS, a citizenl of the' United States,"residing at Providence, in the county of Providence and State oit RhodeIsland, have invented'certain new and useful Improvements inFluidleg'ulatingv Devices,.of which the following Ais a speciiication. fx i ,y

My invention relates vto inidregulating devices such asreducin'g'valves, pump governors, burner governors, and vacuum regula-The essential objects ofy my device, in addition tofthosccommonly'sought in this class vof devices, are' to impart anincreasedmove- -ment 'ofthe valve `stem relatively. to the-diaphragm, whereby amore sensitiveaction of the latter operates-the valveg-vtoenable thesafeemployment of a more tenuous valve stem;rand'to eliminate thepossibility-of eX- 'cessive strain upon the valvev stem whereby theYlatter'in present constructionis caused tobuc'kle, especially whenforeign matter ac- VOther objects and advantages willl lappear cumulatesbetween the valve and valve seat.

' 'from an inspection oftheV specification.

' ,"Tothe ends above detailed and suggested vmyfinvention consists insuch parts and in suchrcombinations oi partspas'fall'within 'the,scope-'of the appended claims vIn the" accompanying drawings whichforma part of thisspeciication, and ,where-A "fsaid `portion isv -adiaphragm 52 toy whose lowerf face is fastened' bya screw'l a-,cir-

cular plate 56 extending into the recess 50 and provided `with a centrallug 58 dependt,

in Lis", shown merely-the preferred` form' 'of mydevice,

` Figures 1 and2 are'verticalcentralfsecvtions offmy device, showing thevalve in closed and open positions respectively,

' Figure' 3, a rear elevation of-the same,`

,Figure 4, a transverse section online Figure v5a detail perspectiveview ofthe Vlever. i

' LikeV reference'.V characters 'indicate like parts throughouttheviewsl In the embodiment of myfinvention herein illustrated 8 isa valvecasingprovidedV with the inlet and outlet openings?) 'and 10 .tor vthe'stem or other working fluid passing 'to the pump o-r compressorthroughthe'inlety and outlet pipes 11 Vand 12 respectively.

14 'and' 'l5r` are the seats of agba'lanced 'valve lconsisting of ftheshank 17 *and upper and I lower valve 'portions 18 and 19'attac'hedfto lthe" 'valve stem A 20'. It l will be understood that the 'balancetype'ofvalve is not exclu- Wreaths .Sin'gleifypemey obviously be.

substituted therefor. 22 is the usual stuif- `ing box, and 23, a yokeframe'connected' with i the valve casing by bolts 25. 'In detailthe'frame comprises a disk shaped base 26, and

uprightsf 27 and k28 rising ffrom'fydiametrcally. opposite-points-on thebase.- The latright is'a-nannular top portion vor arm 29.

vIntegral;V with the upright is anv annulartop portion jor disk 31,integral with whose flower face-"inVK its diametricallyf'oppositemargin'is av depending tubular shell 'or"re- Yceptacle 33, which in turnvis iny one piece The -latter lis threaded intoth'e former as at il for`the purpose of adjustment'.y Upon the seat 39 restsVr the lower end of ahelical main spring 4 2 l which supports -upon its 'upper end afnutorspring seat 43engaging a thread 45 on the rod 40jfor adjusting pur-Vposes. l Adjacentthecentralopening 47 of "the frame portion 31,-V uponitslowerfface isa projection 48'i`n vertical alignmentwith the rod 40.VThe upper facel of the portion 3,1 is provided withja circular vrecessk5,0 con centricY with'the opening 4,7, andgresting on ing through theopening`47- 4Restingon the diaphragm. is a done `shapedhousing plateprovidedv with a depending'peripheral duct secondary pressure to thediaphragm chamber 68.

Referring to shell or housing 33,- which is located diametrically'opposite the' projec tion 4.8,V its rlower lportion hasan internalthread6r8 to receive the thread 69 of ascrew which closesthe-housingandforms the support of a helical relief spring 7.2." -Restingon thespring vand loose in the housing is a cylindrical block 74 in which'is'a pintle 76 slidable vrin'vertical slots 17in vthe housing, vas shown'inFigure 4. VdPivotedfat its PATENT I SHIRLEY s. WEEKS, or PROVIDENQERHODEISLAND.

'ter uprightl has an outwardly curved upper Y vportion or arm 29.AIntegral with the 11pretiene-911' @ariete .iste lever-'79; In...

lfrom 4its seat. Y In Figure 1- the valve is lshown seated by the'action ofV the fluid which enters-the inlet 64 into thecl'iamber .661'and depresses the diaphragm 52 and its plate 564 in -the recess 50 to aposition nearly or just injcontact/With the portion. 31 of the iframe.This depression acts through the lug 58 and llever 79 to depress thevalve through 'thestem sections 40 and 20'. If, however, thepressure ofthe'luid'is exces- .sivegany undue strain on the stem is relieved by vthedownward movement of the attached end of the lever 79 which, throughthe block 74', is mfetbythe yieldingpressure of the spring 72; Thus thecommon buckling yor bending of the valve stem is prevented.. The vextentof downward travel of theplate andlever end 51 is limited at will by theadjustment alorded by the threaded connection 4l of the stem sections.yThe springs 42 and 72 are adjustable by the nut or yspring seat 43 andplug or screw 70 respectively.4 'Ihespring 72 ris more powerful than thespring 42.

It willbe noted that the valve stem is out of; vertical alignment with'the center of the diaphragnnpr' of the piston, when a p ijs# -ton issubstituted for a diapliragm By virtue offthis location andtheinterposition of the lever 7 9 any impulse of the diaphragm 52 islineally multipliedfuponlthe valvejstem at the lever extremity 8l. 'Ehe'valveaction is therefore more extensive jan'd delicate 'than' wouldotherwise b'e possible.

- YThe elimination of undue strains is further important because it'enables the valve stem to be of reduced dimensions thereby reducingfriction/through the stuffing boi.- 'Furthermore other parts may be-ofreduced dimensions and therefore less ve'um'bersongie andexpensive.l

- AIt is to be understoodthat the form of my invention herewith shownanddescribed is 'to'be taken as a preferred yexample fof the same, and thatvarious 'changesY in; the shape,

eieand arrangement-ol"` .parte vmay be rev sorted te Without departingtronlrthe spi-rit of the invention or 'the scopeofthe. sub- .a .powerinlet and outlet therein', ,a `valve f member the casing, a stemonthevalve power inlet in the frame, a movable impelling member in the framevertically ec. centric to the valve stem and actuated through thesecondaryinlet, a lever engaged by the' 'i'ipllig member and engagingthe rstem and arranged to aid in preventing buckling of the stem, andyielding means Y for fulcruining the lever.

vpelling member contractingfat one endwith the valve stem, andyieldingly fulcrunied'at tsp'thr edf Y t f 3. In a fluid regulatingdevice, a casing, an inlet -and outlet. therein, 'avalve member inv thecasing, a stem onthe valve member, a frame on the casing, a springcarried by the stem engaging the casing, a secondary power inletin theframe, a ,movableiim pel-ling member ingthezfr'ame oset'fiom the valve,a lever pivotally supportedV intermediatel its length upon Y theimpelling member-and engaging the stem atone side of its pivotalpoint,and a second spring in theV vframe supporting a'portionl of the lever atthe other side `of its pivotal point;

4,111 a fluid regulating device,z a casing, an i'nlet and outletthereima valve member inthe casing, a stem' on the valve member, a

casing, a secondary power inlet in the iframe,

a diaphragmin Lthe frame adjacentthe secf ondary inlet androut) ofalignment Vwith te valve stem and actuated -directly by the-Huidentering said secondaryin et, a leveiipivotally supported intermediateits length by the diaphragm resting at one en don the stem, a blockslidablymo'unted in the frame pivotally connected to the other end ofthe lever, and asecond spring in the frame supporting the block.

5. In a fluid regulatingdevice, a' easing,V

an inlet and outlet therein, a valve member in the casing, a stem on thevalve meiiibeij;i a

nut on the ,stema a spring s upp'ortedby the frame and bearing against-thej nut,- a; tubular housing on the YAframe parallel with the stem providedwith lateral openings, an adju-stable plug the bottom ofthehousing, a

Vspring:in the .housing resting on thefplu-g, a

block slid-ably Inountediin the housing restthey iframe ladjj-ac ent thesecondary inlet,j a disk upon thediaphragm, a 'lug uponthe ing its freeend resting on thev stem said ing: on the spring, a pi-ntle in theplug-,ex tending through thehopenin'gsi al secondary .power inletyi-nthe frame, a diaphragm in ydish and a lever pivotally mounted on the* lvlug pivoted at one end tothepintle and-hawV springs being disposed uponopposite sides of the pivot of saidlever.

6. In a fluid regulating device, a easing, an inlet and outlet therein,a valve member yin the casing, a stem on the valve member,

a frame on the casing, a secondary power inlet in the frame, a movableimpelling member in the frame ofset from the valve stem, a leverpivotally connected With and engaged intermediate itsvlength by theimpelling member and engaging at one end the valve stem, and a spring inthe frame supporting the other end of the lever.

7 In a fluid regulating valve, a casing with inletand outlet, a valvecontrolling the same, a valve stem therefor, said stem being inadjustable sections, a spring acting on said stem, a diaphragm, asecondary power inlet for actuation of said diaphragm, a lever pendentlysupported from said diahraomwith one end restin on said stem` P e andmeans embodying said lever for pre venting buckling of the valve stem.

In testimony whereof I have affixed my signature.

- SHIRLEY S. WEEKS.

